org.springframework.data.projection

Class SpelAwareProxyProjectionFactory

java.lang.Object

org.springframework.data.projection.SpelAwareProxyProjectionFactory

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.context.ResourceLoaderAware, ProjectionFactory

public class SpelAwareProxyProjectionFactory
extends Object
implements org.springframework.beans.factory.BeanFactoryAware

A ProxyProjectionFactory that adds support to use Value-annotated methods on a projection interface to evaluate the contained SpEL expression to define the outcome of the method call.

Since:

1.10

Author:

Oliver Gierke, Thomas Darimont, Mark Paluch

Constructor Summary

Constructors

Constructor and Description
SpelAwareProxyProjectionFactory()

Method Summary

Modifier and Type	Method and Description
<T> T	createProjection(Class<T> projectionType) Creates a projection instance for the given type.
<T> T	createProjection(Class<T> projectionType, Object source) Creates a projection of the given type for the given source object.
List<String>	getInputProperties(Class<?> projectionType) Returns the properties that will be consumed by the given projection type.
ProjectionInformation	getProjectionInformation(Class<?> projectionType) Returns the ProjectionInformation for the given projection type.
protected org.aopalliance.intercept.MethodInterceptor	postProcessAccessorInterceptor(org.aopalliance.intercept.MethodInterceptor interceptor, Object source, Class<?> projectionType) Inspects the given target type for methods with Value annotations and caches the result.
void	registerMethodInvokerFactory(MethodInterceptorFactory factory) Registers the given MethodInterceptorFactory to be used with the factory.
void	setBeanClassLoader(ClassLoader classLoader)
void	setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)
void	setResourceLoader(org.springframework.core.io.ResourceLoader resourceLoader) Deprecated. rather set the ClassLoader directly via setBeanClassLoader(ClassLoader).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpelAwareProxyProjectionFactory

public SpelAwareProxyProjectionFactory()

Method Detail

setBeanFactory

public void setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)
                    throws org.springframework.beans.BeansException

Specified by:

setBeanFactory in interface org.springframework.beans.factory.BeanFactoryAware

Throws:

org.springframework.beans.BeansException

postProcessAccessorInterceptor

protected org.aopalliance.intercept.MethodInterceptor postProcessAccessorInterceptor(org.aopalliance.intercept.MethodInterceptor interceptor,
                                                                                     Object source,
                                                                                     Class<?> projectionType)

Inspects the given target type for methods with Value annotations and caches the result. Will create a SpelEvaluatingMethodInterceptor if an annotation was found or return the delegate as is if not.

Parameters:

interceptor - the root MethodInterceptor.

source - The backing source object.

projectionType - the proxy target type.

Returns:

getProjectionInformation

public ProjectionInformation getProjectionInformation(Class<?> projectionType)

Description copied from interface: ProjectionFactory

Returns the ProjectionInformation for the given projection type.

Specified by:

getProjectionInformation in interface ProjectionFactory

Parameters:

projectionType - must not be null.

Returns:

setResourceLoader

@Deprecated
public void setResourceLoader(org.springframework.core.io.ResourceLoader resourceLoader)

Deprecated. rather set the ClassLoader directly via setBeanClassLoader(ClassLoader).

Specified by:

setResourceLoader in interface org.springframework.context.ResourceLoaderAware

See Also:

ResourceLoaderAware.setResourceLoader(org.springframework.core.io.ResourceLoader)

setBeanClassLoader

public void setBeanClassLoader(ClassLoader classLoader)

Specified by:

setBeanClassLoader in interface org.springframework.beans.factory.BeanClassLoaderAware

registerMethodInvokerFactory

public void registerMethodInvokerFactory(MethodInterceptorFactory factory)

Registers the given MethodInterceptorFactory to be used with the factory. Factories registered later enjoy precedence over previously registered ones.

Parameters:

factory - must not be null.

Since:

1.13

createProjection

public <T> T createProjection(Class<T> projectionType,
                              Object source)

Description copied from interface: ProjectionFactory

Creates a projection of the given type for the given source object. The individual mapping strategy is defined by the implementations.

Specified by:

createProjection in interface ProjectionFactory

Parameters:

projectionType - the type to create, must not be null.

source - the object to create a projection for, can be null

Returns:

createProjection

public <T> T createProjection(Class<T> projectionType)

Description copied from interface: ProjectionFactory

Creates a projection instance for the given type.

Specified by:

createProjection in interface ProjectionFactory

Parameters:

projectionType - the type to create, must not be null.

Returns:

getInputProperties

public List<String> getInputProperties(Class<?> projectionType)

Description copied from interface: ProjectionFactory

Returns the properties that will be consumed by the given projection type.

Specified by:

getInputProperties in interface ProjectionFactory

Parameters:

projectionType - must not be null.

Returns: